Machine for uniting shoe parts



Feb. 10, 1942. A. L. JALBERT 2,272,207

MACHINE FOR UNITING SHOE PARTS Filed Jan. 10, 1940 3 Sheets-Sheet l WV/5mm? I My. I M 4 Feb. 10, 1942. A. L. JALBERT MACHINE FOR UNITING SHOE PARTS 3 Sheets-Sheet 2 Filec} Jan. 10, 1940 Feb. 10, 1942. A. 1.. JALBERT MACHINE FOR UNITING SHOE PARTS Filed Jan. 10, 1940 3 Sheets-Sheet 3 Tom NQ Q9 Patented Feb. 19, 1942 T'i GFPICE MACHINE FOR UNITING SHOE PARTS Jersey Application January 14), 1940, Serial No. 313,268

I 22 Ciaims.

This invention relates to machines for uniting shoe parts and is herein illustrated, by way of example, as embodied in a machine for assembling a shoe tongue with its lining piece.

A large proportion of the shoes which embody tongue pieces are also provided with tongue linings which are secured to the inner or flesh surface of the tongue piece before the latter is attached to the shoe upper. Such a lining is usually fastened to the tongue with its edge about a quarter of an inch from the free end of the tongue, so that the lining will not be visible when the shoe is being worn. Consequently, to insure the proper registration of parts, the assembling is usually a hand operation. If cement is used, and latex and rubber cements have been found to be well suited for such work, the operation comprises applying a coat of cement to one or both of the pieces, bringing them together in proper relation, and pressing them together to insure a firm bond. Such handwork is, of course, slow and expensive. Furthermore, as in almost any hand cementing operation, there is a considerable likelihood that cement will be smeared on the outer surface of the work piece, and thus necessitate additional labor in cleaning the shoe after it has been completed.

With these considerations in view, it is an object of the present invention to provide a machine which Will apply a coat of cement to one member of a tongue unit,- and then press the parts together in accurate registration with a minimum of handwork and without smearing cement on the finished surface of the tongue piece.

Accordingly, the invention provides a machine for uniting shoe parts comprising a pair of pressing rolls, a cement applying roll adjacent thereto, and a pair of reciprocating tables or carriers one of which is arranged to feed one member of a tongue unit between the applying roll and one of the pressing rolls, the other carrier being arranged to feed another member of the tongue unit between the rcssing rolls into a positionto be pressed against the first-mentioned member in proper registration therewith. The invention further provides a mechanism for carrying away the united parts as they emerge from between the pressing rolls.

'With such a machine it is only necessary for the operator to place the members of the tongue unit on the carriers and the parts need not be touched again until the completed unit has been deposited in a suitable receptacle by the conveyor. The members may be assembled quickly and accurately, without any danger that cement On the operators hands will be smeared on any of them.

The invention will be better understood when considered in connection with the accompanying drawings, in which Fig. 1 is a perspective view of the front of the machine, the cover plate of the mounting for one of the rolls having been removed to show the construction of the mounting;

Fig. 2 is a perspective View of the rear of the machine; and

Fig. 3- is a vertical section through the center of the machine.

As illustrated in the drawings, the machine comprises a pair of reciprocating carriers or tables l0 and 12 one of which is arranged to feed a tongue piece T between a feed roll [4 and a pressing roll it and the other of which is arranged to feed a lining L between a cement applying roll l8 and a second pressing roll 20. As the tongue and lining pass between the respective rolls, they meet a guide member 22 which diverts them upwardly between the two pressing rolls l6 and 2B which press the cemented lining piece against the tongue, thus uniting them. As the united tongue unit emerges from between the pressing rolls it is picked up by a conveyor belt 24 which with the aid of a presser plate 26 carries the unit to a chute 28. I

The carriers HI and I2 on which the operator places the lining and tongue pieces respectively are provided with fiat upper surfaces and have depending side portions 30 which hold the carriers against lateral movement as they are reciprocated, by mechanism hereinafter to be described, on ways 32 and 34 secured to the frame. It is to be noted that in their inmost positions the end portions 35 and 38 of the carriers are close to the rolls, so that even very limp pieces of material may be properly fed between the rolls.

The pressing rolls Iii and 28 are preferably and as illustrated made of rubber so as to apply a yielding pressure to the tongue unit as it passes between them. The shafts 4B and Men which the rolls l6 and it are mounted are journaled in the frame at points such that the bottoms of the rolls are just above the .level of the carriers, and similarly the upper surfaces of the feed roll it and the applying roll l8 are just below the level of the carriers. This insures that the tongue and lining pieces as they are moved inwardly by the carriers will be fed between the two coacting rolls and will not strike the surface of one roll ahead of the other.

.As the pieces move between the rolls, a coat of cement must be applied to at least one of them, To this end the shaft carrying the roll I8 is journaled in slots in two members 44, 46 which form the ends of a trough 48 to which cement is supplied from any convenient source such as a holder 50 (Fig. 2) secured to the trough and in which a cement jar may be held in inverted position in a conventional manner. Thus, as the applying roll rotates it picks up a coating of some suitable cement such as latex and deposits it on the lower face of the lining piece just prior to the moment when the two parts of the tongue unit are pressed together,

The various rolls must, of course, be yieldable away from one another in order to accommodate variations in the thickness of the work pieces being operated upon. To this end, the shaft 42 upon which the roll 20 is mounted is received in a journal member 52 which fits between two parallel ways 54 formed in an upstanding sidepiece 55 of the frame. To permit vertical movement of the journal member, the latter is made somewhat narrower than the space between the two tracks 54 and in its median position contacts them only at its rounded outstanding end portions 58. Thus, the journal member may slide horizontally between the two tracks and also may move in a generally vertical direction by pivoting about one rounded end. Springs 60 are provided to urge the journal member 52 toward the other pressing roll I6. These springs bear against a cover plate (not shown but similar to that illustrated at 52), which is also drilled to receive an adjusting screw (not shown) which fits into a threaded recess 64 in the journal member, thus permitting the limit of movement of the roll 20 toward the roll IE to be set at any desired point. A compression spring 56 between a lug 68 on the upstanding portion 56 of the frame and a lug 70 on the journal member 52 yieldably urges the roll 20 toward the applying roll I0. Similar bearings are also provided for the other end of the pressing roll 20 and for its companion pressing roll I6. The feed roll I4 is also mounted on yieldable bearings of a type substantially similar to the one already described.

As the tongue and lining pass between the rolls I4 and I6, and I8 and 20, respectively, they must be diverted upwardly so that they will pass between the pressing rolls I6 and I8 order to accomplish this there is provided a guide member 22 of approximately triangular cross section which is recessed on its bottom face to slide over a dovetailed key I on the frame, so that the guide member may be readily removed for cleaning. The upper faces I2, I4 of this member are slightly concave the more readily to deflect the tongue and lining pieces which strike them. In order to suit the surfaces of the guide member to the type of work which is to pass over them, the face 12 of the guide member which is toward the uncernented tongue piece is left smooth and the face I4 of the guide member which is toward the cemented lining piece is provided with a number of ribs I8.

After the assembled tongue unit has been placed together, it must be taken from between the pressing rolls and carried to some suitable container. To this end the conveyor belt 24,

which is preferably of rubber, passes over an idler roll 80 mounted on a shaft 82 carried by the vertical portion 84 of an L-shaped upstanding arm 80 of the frame. a drive roll 88 mounted on a shaft 89 journaled in the upper horizontal portion 90 of the arm 86 which provides means for rotating the belt, and a second roll 92 to maintain proper tension thereon. The presser plate 26 holds the tongue unit tightly against the belt and thus insures that the tongue units will not slide on the belt. As the tongue and lining reach the top of the conveyor belt, they pass between the drive roll 88 and an idler roll 94 mounted on a shaft carried by a member 96 bolted to a lever 98 pivoted on the horizontal portion 90 of the arm 06. The opposite end I00 of the lever is urged upwardly by a compression spring I02 acting between the end 02 of the lever and a lug I04 on the frame. Thus, the idler roll is urged downwardly against the drive roll but may yield when a tongue unit passes between it and the drive roll.

In order to provide a source of power to drive the various rolls and to cause the tables to reciprocate toward and away from one another, a grooved pulley I06 rotated by any convenient source of power is mounted on the shaft 89 (Fig. 2) which carries the drive roll 08. A gear I08 is also mounted on this shaft and is connected by means of a chain IIO to a sprocket H2 mounted on the shaft II4 which carries the idler roll 92. The shaft I I4 extends through a plate H6 which is a part of the frame and has a gear II8 secured to it on the other side of the plate. The gear II3 meshes with another gear I20 mounted on a stub shaft I22 journaled in the plate H6. The gear I20 in turn meshes with a gear I24 which engages a train of four intermeshing gears I26, I28, I30, and I32. These four latter gears are each mounted on one of the four shafts carrying the working rolls so that the two presser rolls, the cementing roll, and the feed r011 I4 are all positively driven in the proper direction as indicated by the arrows (Figs. 2 and 3) It is to be noted that these gears are of such a size that the linear velocities of the rolls at their peripheries and also the velocity of the conveyor belt are all the same. Thus, the conveyor belt will not tend to carry away the assembled unit any faster than it is fed out from between the presser rolls.

In order to provide means for reciprocating the carriers I0 and I2 toward and away from one another, the gear I20 has rigid with it a crank I34 the end of which is connected by a link I38 to a lever I38, a screw and slot connection I40 being provided to permit adjustment lengthwise of the lever of the point of connection between the link and the lever. One end of the lever I38 is pivoted on a stud shaft I42 on which is also pivoted an arm I44. The other end of this arm I44 is drilled to receive a shaft I45 on which is mounted a lever I48. The adjacent ends of the levers I38 and I 48 are provided with intermeshing sector gears I50 so that as the lever I38 is swung downwardly by the crank I34 a similar downward movement is imparted to the lever I 48. The swinging movement of the lower ends of the levers I38 and I48 is transmitted to the carriers I0 and I2 in the form of reciprocatory motion by means of two links I52 and I54 which are secured to the carriers by pins I55 passing through slots I58 in the ends of the links. The lost motion connection thus provided allows a slight dwell in the movements of the tables at each end of their reciprocating motion.

It will, of course, be necessary to remove the cement applying roll from time to time for cleancess therein; A lever I60 pivoted on a pin I62 has one end slotted to fit over the shaft 42 carrying the pressing roll so that a downward pressure on the outer end of the lever raises the gear 130 on the shaft 42 and permitsthe cement unit to be slid out of the machine, after which the shaft and roll may be lifted out of the slots in the end members M, 46 of the trough in which the shaft is journaled.

In order to vary the cycle of movement of the carriers toward and away from one another, an ear I64 is formed on the portion 84 of the arm 86 and to this ear is secured a block 166 which is threaded to receive an adjusting screw 1&8 provided with a knurled head Ill). The lower end of the adjusting screw is threaded into a second block H2 which is fastened to the arm I44. Thus, turning the adjusting screw I68 causes the arm I44 to move upwardly or downwardly, varying the throw of the lever I48 which is connected to the carrier I0.

To position the work accurately on the tables or carriers and thus to insure that when the tongue piece and lining piece meet above the guide 22 they will be in proper registration with one another, there are provided gage plates I14 (Fig. 1) the inner ends of which have formed in them recesses I16 adapted to receive one end of the lining piece or tongue piece. These gage plates are held against the tables by means of clamping members I13 which are secured by hand screws I88 to abutments I32 adjustably secured to the carriers by means of hand screws I8 3. Loosening of the screw I 84 permits the abutments l 82 to be moved toward or away from the rolls, thus varying the positions of the gage plates I'M. Lateral adjustment of the gage plate on the carrier II] is also provided for by a side abutment I 86 adjustably secured to the abutment I82 by means of the screw and slot connection I88.

In operating the machine, a tongue piece T is placed Within the recess in the gage plate I14 on the carrier I2 with its grain or finished face upward, and a lining piece L is placed on the car- 4 rier E8 in similar position. It is to be noted here that there is a slight dwell in the reciprocating movement of the carriers when they have reached their outermost position so as to enable the operator to position the shoe parts properly with respect to the gage plates. As the carriers move inwardly toward one another the lining piece is inserted between the cement applying roll I 1 and the pr ssing roll I8, the latter acting at this moment as a feed roll cooperating with the applying roll. At substantially the same time, the tongue piece is inserted between the rotating presser roll it and feed roll I4. The rotation of these four rolls causes the respective parts to move toward one another, but before they meet they are diverted upwardly by the guide member 22 so that they do not come in contact until they are about to pass between the two pressing rolls I6 and 23. As they pass between these two rolls, the tongue and lining are pressed together so as to bond them firmly into a single tongue unit.

Emerging from the pressing rolls, the end of the assembled tongue unit moves upwardly until it is caught between the moving conveyor belt 24 and the conveyor belt plate 326. This latter member holds the unit against the belt so that the latter carries the tongue unit upwardly toward the chute 28. At the end of its journey on the belt the tongue unit passes between the yieldable presser roll 94 and the drive roll 83 so that it is given a final pressing before it is dropped into the chute 28.

As the machine is adjusted in the drawings, it will be noted that the end of the lining is a short distance below the end of the tongue so that it will not be visible from the outer side of the tongue. It may be desirable to change the registration of these two parts to suit the type of work being operated upon. This may be accomplished in either of two ways: first, by adjustment of the screw I68 to alter the cycle of movement of the carrier I0 relative to the other carrier I 2. By this means the lining piece may be inserted between the applying roll and the pressing roll slightly before or after the tongue piece is inserted between the rolls I4 and I 5, thus shifting the relation in which the two parts will be pressed together. Alternatively, the registration of the two pieces may be changed by adjustment of one of the gage members I M forwardly or rearwardly. Such adjustment will change the time at which the lining piece is fed between the two rolls and thus will have the same result as adjustment of the screw IE8.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A machine for uniting shoe parts comprising a pair of pressing rolls, a cement applying roll adjacent thereto, a work carrier constructed and arranged to feed a shoe part between said applying roll and one of said pressing rolls, means for guiding said shoe part between said pressing rolls, and means for feeding a second shoe part between said pressing rolls in position to be pressed against the first shoe part in proper registration therewith.

2. A machine for uniting shoe parts comprising a pair of pressing rolls, a cement applying roll adjacent thereto, a reciprocating table constructed and arranged to feed one shoe part between said applying roll and one of said pressing rolls, and means including a second reciprocating table for feeding another shoe part between said pressing rolls in position to be pressed against said first-mentioned shoe part in proper registration therewith.

3. A machine for uniting shoe parts comprising a pair of pressing rolls, a cement applying roll adjacent thereto, a work carrier constructed and arranged to feed one shoe part between said applying roll and one of said pressing rolls, a second work carrier, and means for guiding a second shoe part fed by said second work carrier between said pressing rolls in position to be pressed against the first shoe part in proper registration therewith.

4. In a machine for uniting shoe parts, a pair of pressing rolls, a cement applying roll adjacent to one of said press ng rolls, a feed roll adjacent to the other of said pressing rolls. a work carrier constructed and arranged to feed shoe part between said applying roll and the adjacent pressing roll, and a second carrier for feeding another shoe part between the feed and the adiacent pressing roll, in position to be united with said first-mentioned shoe part.

5. A machine for uniting shoe parts comprising a pair'of rolls, a carrier for feeding a shoe part between said rolls. a second pair of rolls,

and a second carrier for feeding another shoe part between the second pair of rolls, one of sa d rolls being constructed and arranged to apply cement to one side of one of said shoe parts and other of said rolls being constructed and arranged to press said shoe parts together in proper registration with one another.

6. 'In a machine for uniting shoe parts, a pair of pressing rolls, a cement applying roll adjacent to one of said pressing rolls, a feed roll adjacent to the other of said pressing rolls, a pair of work carriers, one of said carriers being constructed and arranged to feed one shoe part between said applying roll and the adjacent pressing roll and the other carrier being constructed and arranged to feed another shoe part between the feed roll and the adjacent pressing roll, and means for guiding said shoe parts between said pressing rolls whereby the shoe parts will be united in face to face relation to each other.

'7. A machine for uniting shoe parts comprising a pair of pressing rolls, a cement applying roll adjacent thereto, a reciprocating carrier constructed and arranged to feed one shoe part between said applying roll and one of said pressing rolls, means including a second reciprocable carrier constructed and arranged to feed another shoe part between said pressing rolls in position to be pressed against said first-mentioned shoe part in face to face relation thereto, and means for picking up united parts as they are discharged from the pressing rolls.

8. A machine for uniting shoe parts comprising a pair of pressing rolls, a cement applying roll adjacent thereto, a work carrier constructed and arranged to feed one shoe part between said applying roll and one of said pressing rolls, means including a second carrier for feeding another shoe part between said pressing rolls in a position to be pressed against said first-mentioned shoe part in face to face relation thereto, and linkage for reciprocating said carriers toward and away from each other.

9. A machine for uniting shoe parts comprising a pair of pressing rolls, a cement applying roll adjacent thereto, a work carrier constructed and arranged to feed one shoe part between said applying roll and one of said pressing rolls, means including a second carrier for feeding another shoe part between said pressing rolls in a position to be pressed against said first-mentioned shoe part in proper registration therewith, linkage constructed and arranged to reciprocate said carriers, and means for adjusting said linkage to vary the cycle of movement of one of said carriers.

10. A machine for uniting shoe parts comprising a pair of pressing rolls. a feed roll adjacent to one of said pressing rolls, a cement applying roll adjacent to the other of said pressing rolls, a pair of reciprocating carriers, one of said carriers being constructed and arranged to feed a shoe part between one of said pressing rolls and said feed roll and the other of said carriers being constructed and arranged to feed a second shoe part between said applying roll and the adjacent pressing r011, means for guiding said shoe parts between said pressing rolls in a position to be pressed together in proper registration with each other, and gages for positioning said shoe parts on said carriers.

11. A machine for uniting shoe parts comprising a pair of pressing rolls, a cement applying roll adjacent thereto, a cement reservoir, a pair of work carriers reciprocating toward and away from each other, one of said carriers being constructed and arranged to feed one shoe part between said applying roll and one of said pressing rolls and the other carrier being constructed and arranged to insert another shoe part between said pressing rolls in position to be pressed against said first-mentioned shoe part in face to face relation thereto, and means for moving one of said pressing rolls to permit said applying roll and reservoir to be removed from the machine for cleaning.

12. A machine for uniting shoe parts comprising a pair of pressing rolls, a cement-applying roll adjacent thereto, a work carrier constructed and arranged to feed a shoe part between said applying roll and one of said pressing rolls, means for feeding a second shoe part between said press ing rolls in position to be pressed against the first shoe part, and a yieldable mounting for one of said rolls whereby said roll is enabled to maintain firm contact with the other rolls.

13. A machine for uniting shoe parts comprising a pair of coacting presser rolls, a cement applying roll adjacent thereto, a work carrier constructed and arranged to feed a shoe part between said applying roll and one of said pressing rolls, means for guiding said shoe part between said pressing rolls, means for feeding a second shoe part between said pressing rolls in position to be pressed against the first shoe part in proper registration therewith, and a yieldable bearing for one of said pressing rolls, said bearing comprising a pair of parallel ways, a journal member movable between said ways and having end portions engaging said ways, and springs yieldably holding said journal member in normal position.

14. In a machine for uniting shoe parts, a pair of coacting rolls and a yieldable bearing for one of said rolls, said bearing comprising a pair of tracks, a journal member positioned between said tracks and having track-engaging projections at one end of its opposite sides whereby said journal member is movable in two directions, and springs yieldably holding said journal member in normal position.

15. In a machine for uniting shoe parts, a pair of coacting rolls and a yieldable bearing for one of said rolls, said bearing comprising a pair of tracks, a journal member positioned between said tracks and having trackengaging projections at one end of its opposite sides whereby said journal member is movable in two directions, springs yieldably holding said journal member in normal position, and means for limiting the yieldable movement of said journal member.

16. In a machine for uniting shoe parts. a feed roll, other rolls cooperating with said feed roll at different portions of its periphery, and a journal mounting for said feed roll, said mounting comprising a journal member constructed and arranged for sliding movement to permit said feed roll to move toward and away from one of said other rolls and for tilting movement to bring said feed roll into coacting relation with another of said other rolls.

17. In a machine for uniting shoe parts, coacting pressing rolls, feed rolls positioned adjacent to said pressing rolls and arranged to carry the respective shoe parts toward one another, and a substantially triangular guide member for diverting the entering ends of said parts to the bite of said pressing rolls.

18. In a machine for uniting shoe parts one of which has a coating of adhesive, coacting pressing rolls, feed rolls positioned adjacent to said pressing rolls and arranged to carry the respective parts toward one another, and a substantially triangular guide member for diverting the entering ends of said parts to the bite of said pressing rolls, said guide member having a. smooth face for contact with an uncoated shoe part and a ribbed face for contact with a coated shoe part.

19. In a machine for uniting shoe parts, coacting pressing rolls, a substantially triangular work-deflecting guide member positioned adjacent to the bite of said rolls, and means for supporting said guide member for lateral remova1 along a path substantially parallel to the axes of the pressing rolls, said means comprising a bar slidably engaging said guide member and extending transversely of the machine.

20. In a machine for uniting shoe parts, coacting pressing rolls disposed beside each other, feed rolls, a guide member for bringing the incoming edges of two shoe parts into overlapping relation between said pressing rolls, and reciprocable carriers for the shoe parts to be joined arranged to deliver said parts to the respective feed rolls.

21. In a machine for uniting shoe parts, coacting pressing rolls disposed beside each other, feed rolls, a guide member for bringing the incoming edges of two shoe parts into overlapping relation between said pressing rolls, reciprocable carriers for the shoe parts to be joined arranged to deliver said parts to the respective feed rolls, and means for adjusting the relative timing of said reciprocable carriers thereby to control the relation of the ingoing edges of the parts.

22. In a machine for uniting shoe parts, a cement-applying roll, a trough into which said roll dips, means for journaling the applying roll in the ends of said trough, a mounting in which said trough is slidable thereby to permit withdrawal of the trough in a direction parallel to the axis of the roll, and a supply receptacle mounted for movement with said trough.

ADRIEN L. JALBERT. 

